Composition comprising polyion complex particle and oil

Abstract

The present invention relates to a composition, preferably a cosmetic composition, and more preferably a skin cosmetic composition, comprising: (a) at least one particle, comprising at least one cationic polymer and at least one anionic polymer, at least one cationic polymer and at least one amphoteric polymer, at least one anionic polymer and at least one amphoteric polymer, or at least one amphoteric polymer, and at least one non-polymeric acid having two or more pKa values or salt(s) thereof or at least one non-polymeric base having two or more pKb values or salt(s) thereof; (b) at least one oil; and (c) water. The composition according to the present invention is stable, and can have a variety of cosmetic functions. For example, the composition according to the present invention can prepare a film which can have cosmetic effects such as moisturizing due to the oil(s).

The invention claimed is: 
     
       1. A composition, comprising:
 (a) at least one polyion complex particle, comprising 
 at least one cationic polymer and at least one anionic polymer, 
 at least one cationic polymer and at least one amphoteric polymer, 
 at least one anionic polymer and at least one amphoteric polymer, or 
 at least one amphoteric polymer, 
 and 
 at least one crosslinker, selected from the group consisting of: 
 at least one non-polymeric acid having two or more pKa values or salt(s) thereof, and 
 at least one non-polymeric base having two or more pKb values or salt(s) thereof; 
 (b) at least one oil; and 
 (c) water; 
 wherein 
 the crosslinker crosslinks the cationic polymer and the anionic polymer, the cationic polymer and the amphoteric polymer, the anionic polymer and the amphoteric polymer, or the amphoteric polymer; and 
 wherein the (a) particle further comprises (d) at least one hydrophobic amino acid other than the non-polymeric acid or base. 
 
     
     
       2. The composition according to  claim 1 , wherein
 a plurality of the (a) particles are present at the interface between the (b) oil and the (c) water, or 
 a plurality of the (a) particles form a capsule having a hollow, and the (b) oil is present in the hollow. 
 
     
     
       3. The composition according to  claim 1 , wherein the cationic polymer has at least one positively chargeable and/or positively charged moiety selected from the group consisting of a primary, secondary or tertiary amino group, a quaternary ammonium group, a guanidine group, a biguanide group, an imidazole group, an imino group, and a pyridyl group. 
     
     
       4. The composition according to  claim 1 , wherein the cationic polymer is selected from the group consisting of cyclopolymers of alkyldiallylamine and cyclopolymers of dialkyldiallylammonium, (co)polyamines, cationic (co)polyaminoacids, and salts thereof. 
     
     
       5. The composition according to  claim 1 , wherein the anionic polymer has at least one negatively chargeable and/or negatively charged moiety selected from the group consisting of a sulfuric group, a sulfate group, a sulfonic group, a sulfonate group, a phosphoric group, a phosphate group, a phosphonic group, a phosphonate group, a carboxylic group, and a carboxylate group. 
     
     
       6. The composition according to  claim 1 , wherein the anionic polymer is selected from the group consisting of polysaccharides, anionic (co)polyaminoacids, (co)poly(meth)acrylic acids, (co)polyamic acids, (co)polystyrene sulfonate, (co)poly(vinyl sulfates), dextran sulfate, chondroitin sulfate, (co)polymaleic acids, polyfumaric acids, maleic acid (co)polymers, and salts thereof. 
     
     
       7. The composition according to  claim 1 , wherein the amphoteric polymer has
 at least one positively chargeable and/or positively charged moiety selected from the group consisting of a primary, secondary or tertiary amino group, a quaternary ammonium group, a guanidine group, a biguanide group, an imidazole group, an imino group, and a pyridyl group, 
 and 
 at least one negatively chargeable and/or negatively charged moiety selected from the group consisting of a sulfuric group, a sulfate group, a sulfonic group, a sulfonate group, a phosphoric group, a phosphate group, a phosphonic group, a phosphonate group, a carboxylic group, and a carboxylate group. 
 
     
     
       8. The composition according to  claim 1 , wherein the amphoteric polymer is selected from the group consisting of polyquaternium-22, polyquaternium-39, polyquaternium-53, polyquaternium-64, polyquaternium-51, polyquaternium-61, and mixtures thereof. 
     
     
       9. The composition according to  claim 1 , wherein the amount of the polymer(s), in the composition is from 0.001 to 25% by weight, relative to the total weight of the composition. 
     
     
       10. The composition according to  claim 1 , wherein the amount of the non-polymeric acid having two or more pKa values or salt(s) thereof or non-polymeric base having two or more pKb values or salt(s) thereof in the composition is from 0.0001 to 30% by weight, relative to the total weight of the composition. 
     
     
       11. The composition according to  claim 1 , wherein the pH of the composition is from 3 to 9. 
     
     
       12. The composition according to  claim 1 , wherein the amount of the (a) particle in the composition is from 0.001 to 60% by weight, relative to the total weight of the composition. 
     
     
       13. The composition according to  claim 1 , wherein the (b) oil is selected from polar oils. 
     
     
       14. The composition according to  claim 1 , wherein the amount of the (b) oil(s) in the composition is from 0.01 to 50% by weight, relative to the total weight of the composition. 
     
     
       15. The composition according to  claim 1 , wherein the composition is in the form of an emulsion comprising 0.1% by weight or less of surfactant(s). 
     
     
       16. The composition according to  claim 1 , wherein the composition further comprises (e) at least one oil gelling agent. 
     
     
       17. A film, prepared by a process comprising:
 applying onto a substrate, the composition according to  claim 1 ; and 
 drying the composition. 
 
     
     
       18. A film, comprising:
 at least one cationic polymer and at least one anionic polymer, 
 at least one cationic polymer and at least one amphoteric polymer, 
 at least one anionic polymer and at least one amphoteric polymer, or 
 at least one amphoteric polymer; and 
 at least one crosslinker selected from the group consisting of: 
 at least one non-polymeric acid having two or more pKa values or salt(s) thereof, and 
 at least one non-polymeric base having two or more pKb values or salt(s) thereof; 
 and 
 at least one oil; 
 wherein 
 the crosslinker crosslinks the cationic polymer and the anionic polymer, the cationic polymer and the amphoteric polymer, the anionic polymer and the amphoteric polymer, or the amphoteric polymer; and 
 wherein the (a) particle further comprises (d) at least one hydrophobic amino acid other than the non-polymeric acid or base. 
 
     
     
       19. A process for preparing a film, comprising:
 applying onto a substrate, the composition according to  claim 1 ; and 
 drying the composition. 
 
     
     
       20. A cosmetic process for caring for and/or making up the surface of a keratin substrate, comprising
 applying to the keratin substrate the composition according to  claim 1 ; and 
 drying the composition to form a cosmetic film on the keratin substrate. 
 
     
     
       21. A process for preparing a film, comprising: applying onto a substrate, the composition according to  claim 1 ; and drying the composition, wherein the cosmetic film is resistant to water with a pH of 7 or less, and is removable with water with a pH of more than 7.